Which two serotypes are most commonly reported for Salmonella?

Which two serotypes are most commonly reported for Salmonella?

• A. S. Enteritidis and S. Typhi
• B. S. Newport and S. Dublin
• C. S. Typhimurium and S. Enteritidis
• D. S. Heidelberg and S. Infantis

Answer: (C)

Two Salmonella serotypes most frequently seen in human illness are Salmonella Enteritidis and Salmonella Typhimurium. Their dominance comes from how widespread they are in the food supply and in animal reservoirs. Enteritidis is especially associated with eggs and poultry, while Typhimurium has a broad host range and appears in a variety of foods, including meat, dairy, and produce. Because they show up so often across many outbreaks and sporadic cases, they consistently top surveillance reports. The other listed serotypes do occur and can be important in specific outbreaks or regions, but they don’t tend to be as consistently the most reported as these two.

Two Salmonella serotypes most frequently seen in human illness are Salmonella Enteritidis and Salmonella Typhimurium. Their dominance comes from how widespread they are in the food supply and in animal reservoirs. Enteritidis is especially associated with eggs and poultry, while Typhimurium has a broad host range and appears in a variety of foods, including meat, dairy, and produce. Because they show up so often across many outbreaks and sporadic cases, they consistently top surveillance reports. The other listed serotypes do occur and can be important in specific outbreaks or regions, but they don’t tend to be as consistently the most reported as these two.